Metallic roofing-shingle.



I PATENTED MAY 5, 1903. H. IUMOOMAW. METALLIC ROOFING" SHINGLE.

APPLICATION FILED FEB. 7, 1 903,

H0 MODEL.

WITNESSES A tlorneys m: NORRIS PETERS co. PHOYO-L'IIHQ, WASH N UNITED STATES Patented May 5, 1903.

HENRY E. MOOMAW, OF OHATTANOOGA, TENNESSEE.

METALLIC ROOFING-SHINGLE.

IQ'PECIFIGATION forming part of Letters Ifatent No. 727,179, dated May 5, 1903. Application filed February 7, 19d3. Serial No. 142,391. (No model.)

a resident ofChattanooga, county'of Hami1-.

;- ton, State of Tennessee, have invented certain new and usefullmprovements in Metallic Roofing-Shingles, of which the following is a full, clear, and exact description, reference.

being had to the accompanying drawings, in which Figure 1 is aperspective view of the adja cent parts of a series of shingles, showing the manner of overlapping; Fig. 2, a transverse section of one of the detachable lock-seams enlarged; Fig. 3,a similar view slightly modified, and Fig. 4: an edge view of the lower end of one of the shingles.

This invention has reference to that class of metallic shingles which have their adjacentv longitudinal edges overlapped and locked detachably together in such manner as toform a gutter or channel, which will serve to prevent the water working under theshingles and will shed it upon the row of shingles next below, the shingles below being alternated with the shingles above, so that the upper channels will discharge their water upon the middle portions of the shingles below.

The object of the present invention is to provide an improved lock-joint which will permit the utmost expansionan d contractionof the shingles without unlocking and which will more efiectually prevent the rain-water working in at the joints and reaching the roof-boards, as more fully hereinafter set forth.

Referring to the drawings by letters, b des-- ignates a channel formed in the'shingle near its nailing-flange by bending upa portion of the body of the shingle and folding it upon itself,as indicated at a, this folded part ct being bent outward toward the nailing-flange e, the mouth of the channel I) being thereby restricted. Between the channel I) and the nailing-flange e are formed two separate ridges or corrugations a, running the full length of the shingle and forming a channel or gutter d between them, said ridges a being formed by simply striking or folding up portions of the body of the shingle. These ridges c, as well as the folded part a, project above the main surface of the shingle. The other longitudinal edge of the shingle is provided with a bridge which when the shingles are interlocked is adapted to rest upon and bridge over the ridges c and be substantially flush with the upper side of the folded tongue at.

The edge of the shingle at 9 beyond this bridge or swellfis'bent upward, so that when it is inserted in the channel I) in fastening the shingles together it will spring under the tongue parta a'nd .Will bear up resiliently against its under side, as shown in Fig. 2. As willbe observed,"when the shingles are interlocked the outer shoulder of the bridge portion f bearsdirectlyagainst the inner shoulderofthe innermost ridge 0, these shoulders be'ing preferably made substantially vertical. Depending vfrom the under side of the bridge 'f is'a longitudinal drip-flange h, which eX- tends the full length of the shingle and depends a short distance into the valley d.

It will be observed that in light rain-storms the valley I) will catch and discharge all the water that works in between the edges of the shingles, but in heavy and prolonged storms or when the roof is covered with melting snows there will be a tendency for the Water to work up under the spring-tongue past the first ridge 0. If this occurs, the valley d will catch such leakage and properly discharge it, thereby making it a very remote possibility that any water shall reach the roof-boards. To guard against the entrance of water by capillary attraction, I provide the drip-flange h, which will collect'and discharge into the valley d any water that may work in along under the surface of the bridgef. This dripflange h is formed by simply depressing a portion of the metal of the shingle centrally of-the bridge f. The bridge f bears firmly upon the ridges c, not only in order that a water-tightjoint shall-be formed at two points, but" also in' "order that the bridge fwill be firmly supported. It will be observed also that the two ridges c and the intermediate valley and bridge will permit the shingles to readily contract and expand without strain and without unlocking. This is an important feature, as shingles of this sort are subjected when in use to the extremes of heat and cold and full provision must be made not only against buckling, but also against unlocking or unfastening.

At the middle of the lower edge of each shingle a bridge 2' is formed to permit the shingle to straddle the locked joint of the shingles below, and each shingle is preferably strengthened and ornamented by one or more embossings, such as j and is.

It Will be observed that each row of shingles overlaps the upper ends of the row of the next below and that across the overlapped part of each shingle is formed aseries of ribs 0%, struck up from the body of the shingle and extending from the bridgef at one side to the fold a at the opposite side, the lowermost one of these ribs being formed straight and the others being preferably curved and each having its front or lower edge substantially straight or square. These ribs m serve as Water-dams to prevent the rain-water being blown up under the ends of the overlapped shingles, and to further guard against the water passing up under ths shingles and also to assist in holding the shingles in place those portions of the lower edge of each shingle between its central bridge i and the lap ct on one edge and the bridge f at the other edge are bent down, as at 5, these downwardbent parts being adapted to bear against the lowermost rib or dam m, as shown most clearly in Figs. 1 and 4. It will be observed that the overlapping shingles rest upon the dams 'm.

If desired, the drip-flange It may be omitted, as shown in Fig. 3, Without departing from the spirit of my invention.

Having thus fully described my invention,

what I claim, and desire to secure by Letters Patent, is

1. A main lock-joint for shingles consisting of a locking channel or fold formed in one of the shingles near its nailing-flange and two longitudinal ridges formed in the shingle between said channel and said nailing-flange, a second or supplemental valley or gutter being formed between these ridges, and a locking-tongue formed on the adjacent shingle and adapted to enter said lock fold or channel, this adjacent shingle being pro- Vided with a bridge extending longitudinally of the shingle and bridging and resting upon the ridges atoresaid,for the purposes set forth.

2. A lock-joint for roofing-shingles comprising a locking channel or fold extending longitudinally of the shingle near its nailingflange and a pair of separated ridges extending longitudinally of the shingle between said locking-fold and said nailing-flange, and an adjacent shingle having a locking tongue or flange adapted for insertion in said locking fold or channel and a bridge portion extend.- in g across said ridges,this bridge portion being provided with a depending longitudinal dripflange coincident with the channel between the ridges.

In testimony whereof I hereunto aifix my signature, in the presence of two witnesses, this 3d day of February, 1903.

HENRY E. MOOMAW.

Witnesses-z D. S. LOVENTHAL, W. P. FENNIEY. 

